Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states

Minoru Kawamura; Hiroyuki Takahashi; Yoshiaki Hashimoto; Shingo Katsumoto; Tomoki Machida

doi:10.1088/1742-6596/150/2/022034

Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states

Mesoscale and Nanoscale Physics 2009-04-17 v1

Authors: Minoru Kawamura , Hiroyuki Takahashi , Yoshiaki Hashimoto , Shingo Katsumoto , Tomoki Machida

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Abstract

We demonstrate a new method for electrical manipulation of nuclear spins utilizing dynamic nuclear polarization induced by quantum Hall effect breakdown. Nuclear spins are polarized and detected through the hyperfine interaction between a nuclear spin system and a two-dimensional electron system located at an interface of GaAs/AlGaAs single heterostructure. Coherent oscillations between the nuclear-spin quantum states are observed by measuring the longitudinal voltage of the conductor.

Keywords

nuclear spin manipulation quantum hall effect dynamic nuclear polarization hyperfine interaction coherent oscillations

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@article{arxiv.0808.4021,
  title  = {Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states},
  author = {Minoru Kawamura and Hiroyuki Takahashi and Yoshiaki Hashimoto and Shingo Katsumoto and Tomoki Machida},
  journal= {arXiv preprint arXiv:0808.4021},
  year   = {2009}
}

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4 pages, 2 figures

Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states

Abstract

Keywords

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